Inking apparatus for duplicating machines



rrp STATES ERNEST 3;. BRAssEUR, orv CHICAGO, ILLINOIS, AssIefNoR To a.B. DICK COMPANY, OF

' f CHICAGO, ILLINOIS, a CORPORATION or ILLINOIS.

INKING APrARA'rUs non" QUPLICATING MACHINES.

Application; ined July 17',

To aZZ whom t .may concern: l Be it known that I, ERNns'I"` tI.Brasseur, a citizen of the United States, residing 1n .the city ofChicago, county ofiCoolr, and

lin` a mannervthat does not permit excessive "1 feeding of the ink'during the duplicating p operations of the machine.

. rated diaphragm to .assist in distributingthe'ink over the diaphragminA an'entirely new mannergandto thereby obtain a more' Afurtherpbjectjof. the invention is'to1 provide a simple form of'constructional' means `to be quicklyeaiixed in position in closeproximity or in contact withthe perfoleven intensityzof printing duringthe duplicating operations. Another objectl ofl this invention is todelsign the constructional` parts of theapparatus so they may be quicklymanufactured at minimum costsandmay be readily as-"' semble in themachine.

Other objects" and advantages vof this' invention will become apparentas the detailed description is read.A

Reference is hereby, made to a copending application by the same'inventor executed at even date herewith and entitled Duplicat' ingmachines. .The referred to application includes additional featuresrelating to the novel inking means.

A preferred embodiment of this inven,

tion yis illustrated in ings wherein; f

Fig. 1 isa sectional view of a perforated diaphragmjof a duplicatingmachineshowing a grid mounted in association with the the accompanyingdrawdiaphragm.

Fig. 2 is a top plan view of a portion of the perforatediaphra'gmshowing of a grid inf-normal position; and

Fig. 3 is a partial perspective View partly a partv '1924. sei-iai No.126,466.

in section vof portions of the diaphragm and the" grid" illustrating thejoining edges f of two of the grid sections. *Referring now7 to thesedrawings a diaphragm 1 of the usual StenOil-Carrymgduplicating machineis shown in portion and is provided with the usual perfo-rations 2 whichpermit ink placed on said Idiaphragm to pass toa suitable ink pad andfrom there to astencil, all of which construction is Well known in theart. In this particular form of diaphragm it is desired to have the endsof the diaphragm upturned or bent inwardly to form abutments 8' and 4.These abutments are provided with suitable series of openings 5 and 6which permit ink flowingl from the diaphragm to pass to another .portionof lthe 'duplicating apparatus more fully described infthe otherapplication above referred to.

' In describing in .detail the means employed for assisting indistributing ink over the perforated diaphragm and for maintaining asmall free supply "of ink in contact with said diaphragm, it has beenfound desirable to mount such a means in close association with saiddiaphragm .as will guide the inkphragm. tWhen'- desired a screen oflarge 'meshprope'rly positioned in relation to the diaphragm maybeemployed in accomplish- 'ing thisfpurpo'se. It is to be understoodI thatthe frame or grid may be placed in contact withthe diaphragm or slightlyabove it. either case the grid is considered to be in close associationwith the diaphragm.

'In setting forth and describing the most simpleoo-nstruction to attainthis proper distribution, it has been 'found advisable from themanufacture and assembly standpoints to form the grid in a series ofsections here illustrated vas end sections and 8 and an intermediatesection Y10.y It is to beA diaphragm for accomplishing v Such aframework or grid 1s loo understood thatthese sections form a completegrid and if desired may be, constructed inthe form of a single unit.This preiA l ferred form provides a series of partitions 110.'

small enclosures or. areas partitions thereby -maintaining a smallsupply of ink that is free on said diaphragm but yet not in suchrelation to the diaphragm as to force ink therethrough.

During the operation of the duplicating machine, the diaphragm 1 and thegrid sections 7, 8, and 10 will be rotated, but the grids will remainnon-movable in respect to the diaphragm.' During this rotation of thedrumit will'be readily perceived that a small proportion of ink willendeavor to flow out of the enclosures and the grid has been constructedto permit the ink to flow from one area or enclosure to another.. Thepreferred constructiongfor accomplishing and permitting the ink to flowout of one area to another and still retain some ink within each area isto provide suitable notches 14 in the longitudinal partitions and topreferably position the cross parti/- tions above the diaphragm asillustrated in Fig. 1. It is to be understood that notches may beprovided in thebottom edges of the cross partition 12 if desired orother constructions may be employed.

Any suitable means may be used to maintain the grid in normal positionin respect to the perforated diaphragm. The particular constructionwhich is desired for this purpose includes the positioning of y suitableanges 15 near the edges of the perforated diaphragm as illustrated inthe drawings. The grid sections are constructed so as to be positionedbetween these flanges, and in assembling the sections of the grids itwill I be noted that grid 7 is placed in contact with abutment 3` andthat section 8 is placed in contact with abutments 4. Each of thesesections is provided with cross partitions 16 and 17v respectively whichare positioned at angles to the perforated diaphragm. The intermediateor middle section 10 ofthe grid has its two end partitions 18 and 20also formed at angles to properly engage the partitions 16 and 17 ofsections 7 and 8. With such construction a suitable fastening meansengaging only the middle section 10 becomes necessary. This Vwill bereadily appreciated where it is noted that as section 10 is assembled inposition sections 7 and -8 are forced against abutments 3 and 4respectively by reason of the angle positions of partitions 16, 17, 18and 20. The means for fastening the middle section inpositoy be quicklytion comprises a suitable screw stud 21 as noted in Fig. 2 and itcooperates with flange 15. It is to be understood that other simple andsuitable fastening means nay be employed if desired.

It will be seen from the foregoing description that the ink,distributing means mounted in 'close association with the perforateddiaphragm is simple of construction and permits the manufacture to becompleted at reduced costs, and it is arranged assembled in non-movablepos1t1on 1n desired relationy to thev diaphragm.- 'When the grid orframe is in normal position it will `be noted that the ink received bythe diaphragm will be automatically distributed over the diaphragm in asubstantially uniform manner and by reason of nthe grid construction asmall free supply of ink will be maintained in contact with thediaphragm thereby obtaining \substantially uniform duplicating resultsfrom the operation of the machine.

It will be understood that while there is here described in detail aparticular embodiment of the invention for purposes of full disclosures,which are specifically clainied for a special advantage,` many changesand modifications' may be made in the particular construction andarrangement of parts without departing from the broad scope of theinvention which is outlined in the subjoined claims.

' I claim: d 1. ,In a duplicating machine, a perforated diaphragmconstructed to receive ink, and means positioned non-movable in respectto said diaphragm for assisting in distributing ink over said diaphragm.

2. In a duplicating machine, a perforated diaphragm constructed toreceive ink, and means held in close association with said di- -1aphragm and non-movable in'respect theretovfor assisting in distributingink thereover.

3. In a duplicating machine, a perforated diaphragm constructed toreceive ink, and means positioned non-movable in respect tosaid'diaphragm for assisting in distributing ink lover said diaphragm,said means being constructed of material which permits a small amount ofink to cleave thereto.

4. In a duplicating machine, a perforated diaphragm constructed toreceive ink," and means positioned non-movable in respect to saiddiaphragmfor` assisting in distributing ink over said diaphragm and forholdlinga free supply of ink in contact with said diaphragm.

5. In a duplicating machine, a perforated diaphragm constructed toreceive ink, and a grid diaphragm for assisting in distributing inkthereover and for maintaining a small sup- A ply of free ink on saiddiaphragm.

6. In a duplicatingmachine, a perforated and some detailed .featuresmember closely associated with 4said 4 in respect thereto, said gridbeing con- Aform channels from one end ot' said diaphragm to the otherend thereof for guiding ink over said diaphragm.

7. In a duplicating machine, a perforated diaphragm constructed toreceive ink, and a grid having a series of partitions positioned inlongitudinal relation over the surface of said diaphragm to formchannels from one end of said diaphragm to the other end thereof forguiding ink over said diaphragm, said partitions being arranged topermit ink to pass from one channel to another.

8. In a duplicating machine, a. perforated diaphragm constructed toreteive ink, and a grid vmember closely associated with said diaphragmtor guiding ink thereover, said grid having partitions extending acrossthe width of said diaphragm.

9. In a duplicating machine, a perforated diaphragm constructed toreceive ink, and a grid member closely associated with said diaphragmfor guiding ink thereover, said grid having partitions extending acrossthe width of said diaphragm, said partitions arranged to permit some inkto pass from one side of one partition to another side thereof.

10. In a duplicating machine, a perforated diaphragm constructed toreceive ink, rand a grid positioned to be closely associated with saiddiaphragm and to be non-movable in respect thereto, said grid beingconstructed to form a series ot relatively small areas over the surfaceof said diaphragm.

11. In a duplicating machine, a. perforated diaphragm constructed toreceive ink, and a grid po-sitioned to be closely associated with saiddiaphragm and to be non-movable structed with longitudinal and crosspartitions to form relatively small areas.

12. In a duplicating machine, a perforated 'diaphragm constructed toreceive ink, and a grid positioned to be closely associated with saiddiaphragm and to be non-movable in respect thereto, said grid havinglongitudinal and cross partitions to form relatively small areas, saidlongitudinal partitions being provided with notches which permit ink toflow under said longitudinal partitions.

13. In a duplicating machine, a perforated diaphragmconstructed toreceive ink, and a grid positioned to be closely associated i with saiddiaphragm and to be non-movable in respect thereto, said grid. havinglongitudinal and cross partitions forming relatively small areas, saidcross partitions being positioned out of contact with said diaphragm topermit ink to flow under said cross partitions in passing from one areato another.

14. In a duplicating machine, a perforated diaphragm constructed toreceive ink., and a grid positioned to be closely associated with saiddiaphragm and to be non-movabie in respect thereto, said grid havinglongitudinal and cross partitions forming relatively small areas, saidlongitudinal partitions being provided with notches to permit ink toflow under said longitudinal partitions and said cross partitions beingmounted above said diaphragm to permit ink to tlow under said crosspartitions.

15.' In a duplicating machine, a perforated diaphragm constructed toreceive ink, and a grid having longitudinal partitions to form channels'from one end ot' said diaphragm to the other end thereof, said gridhaving cross partitions raised abo-ve the lower edges ot' saidlongitudinal partitions to permit ink to flow along said channels andunder said cross partitions.

16. In a duplicating machine, aV perforated diaphragm constructed toreceive ink, anges extending upwardly and being positioned near theedges of said diaphragm and extending substantially the length thereof,and a grid affixed to said flanges and held in close association withsaid diaphragm for distributing ink over said dia.- phragm and :tormaintaining a small free supply of ink on said diaphragm.

17. In a duplicating machine, a perito` rated diaphragm constructed toreceive ink, flanges extendlng upwardly vand being 'positioned near theedges of said diaphragm 'and extending substantially the length thereof,and a grid composed ot a series of sections positioned in closeassociation with the ends of said diaphragm and with said flanges, saidgrid sections beingconstructed to assist in distributing ink over saiddiaphragm. 18. In a duplicating machine, a perforated diaphragmconstructed to receive ink, saiddiaphragm having its ends upturned to eform abutments, .flanges positioned near the edges of said diaphragm andextending the length thereof, a grid composed of three sections arrangedto be placed between said abutments and said flanges and in contact withone another, andy fastening means cooperating'with said'flanges and oneof said grid sections for maintaining said sections in normal positionrelatively to .said dia.- phragm.

19. In a duplicating machine, a, perforated ldiaphragm constructed toreceive ink, o

said diaphragm having its ends upturned to form abutments, flangesaiixed to said diaphragm near the edges thereof and conllt structed toextend the length of said dial phra m, a grid composed of three sectionsand ein positioned between said abut- .ments an said anges and in closeassociationwith said diaphragm, said sections having the edges thereofwhich engage another l of the sections constructed at an angle to saiddiaphragm to thereby cause the two end sectlons to be positively heldagainst said abutments when said third grid section is assembled inposition, and fastening means cooperating with said intermediate sectionof the grid for holding said sections in position.

20. In a duplicating machine, a perforated diaphragm constructed toreceive ink, flanges mounted on said diaphragmnear the edges thereof, agrid composed of three sections each being provided with lon itudinaland cross partitions and being hel in close association with saiddiaphragm; said parti-v Jtions being constructed to 'permit ink to passthereunder, and means for holding said grid sections in normal position.

21. In a duplicating machine, a perforated diaphragm constructed toreceive ink, said diaphragm having its ends upturned to formabutments,anges mounted on'said diaphragm at the edges thereof and extending thelength of said diaphragm, a grid composed-of two end sections and yanintermediate section constructed to be positioned in close associationwith said diaphragm and between said abutments and said flanges, saidgrid sections having longitudinal and cross partitions, saidlongitudinal partitions having notches in the bottom edges thereof topermit ink to iiow thereunder, said cross partitions being raised abovesaid dia-y phragm to permit ink to iow thereunder, said end sectionsbeing held positivelyl in engagement with said abutments and ling theedges Which engagethe intermediate July, 1924.

` y ERNEST J. BRASSER.

